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exp(arctan(x)*arcsin(x))=1+2/2!*x^2+8/4!*x^4+158/6!*x^6+4104/8!*x^8...
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%I #6 Aug 18 2014 15:42:50

%S 1,2,8,158,4104,346602,24240372,4851149886,651838359408,

%T 239431266389586,52363260776961132,30711336758113317990,

%U 9908919510460647921960,8503014202216759714206330,3792595745728445864618214180,4484803880283207420946418876430

%N exp(arctan(x)*arcsin(x))=1+2/2!*x^2+8/4!*x^4+158/6!*x^6+4104/8!*x^8...

%t With[{nn=30},Take[CoefficientList[Series[Exp[ArcTan[x]ArcSin[x]],{x,0,nn}],x] Range[0,nn]!,{1,-1,2}]] (* _Harvey P. Dale_, Aug 18 2014 *)

%K nonn

%O 0,2

%A Patrick Demichel (patrick.demichel(AT)hp.com)

%E More terms from _Harvey P. Dale_, Aug 18 2014